September weather in Twin Valley, MN
The average temperature in Twin Valley in September is 58.2°F (45.5°F–70.9°F). Average precipitation: 2.80 inches.
September is a fall month in Twin Valley, and is warmer than the annual average of 40°F. Daily temperatures swing about 25.4°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 19m. For travel, September is a comfortable month to visit.
Avg High
70.9°F
Avg Low
45.5°F
Precipitation
2.80 in
Daylight
12h 19m
September records in Twin Valley
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.0°F (1894) | 30.0°F (1946) | 1.74 in (1973) |
| September 2 | 97.0°F (1921) | 30.9°F (1946) | 2.00 in (1957) |
| September 3 | 93.9°F (1948) | 34.0°F (1918) | 2.25 in (1999) |
| September 4 | 97.0°F (1922) | 33.1°F (1918) | 2.40 in (1971) |
| September 5 | 100.0°F (1978) | 32.0°F (1929) | 1.85 in (1969) |
| September 6 | 100.0°F (1978) | 30.0°F (1934) | 2.35 in (2005) |
| September 7 | 99.0°F (1978) | 30.0°F (2025) | 2.23 in (2001) |
| September 8 | 97.0°F (1978) | 30.0°F (1895) | 1.58 in (2016) |
| September 9 | 96.1°F (1931) | 18.0°F (1900) | 1.50 in (1900) |
| September 10 | 96.1°F (1952) | 25.0°F (1898) | 2.56 in (1916) |
| September 11 | 100.0°F (1931) | 21.9°F (1955) | 0.70 in (1986) |
| September 12 | 91.9°F (1990) | 24.1°F (1902) | 0.99 in (1994) |
| September 13 | 93.0°F (1927) | 21.9°F (1923) | 1.28 in (1972) |
| September 14 | 95.0°F (1939) | 25.0°F (1956) | 1.88 in (1900) |
| September 15 | 88.0°F (1982) | 28.0°F (1894) | 1.23 in (1928) |
| September 16 | 91.9°F (1979) | 26.1°F (1900) | 1.10 in (1899) |
| September 17 | 91.9°F (2018) | 24.1°F (1901) | 0.68 in (1968) |
| September 18 | 91.0°F (1939) | 17.1°F (1929) | 1.92 in (1977) |
| September 19 | 91.9°F (1940) | 19.0°F (1929) | 2.09 in (1988) |
| September 20 | 89.1°F (1895) | 19.9°F (1918) | 3.96 in (2017) |
| September 21 | 90.0°F (1922) | 23.0°F (1934) | 1.37 in (2018) |
| September 22 | 100.9°F (1936) | 19.9°F (1974) | 0.71 in (1969) |
| September 23 | 91.9°F (2007) | 19.9°F (1928) | 1.28 in (2010) |
| September 24 | 87.1°F (1935) | 23.0°F (1951) | 2.98 in (1973) |
| September 25 | 82.9°F (1920) | 23.0°F (1985) | 2.10 in (1901) |
| September 26 | 91.0°F (1974) | 19.9°F (1965) | 0.74 in (1996) |
| September 27 | 93.9°F (1952) | 18.0°F (1893) | 0.78 in (2013) |
| September 28 | 86.0°F (2011) | 19.0°F (1942) | 0.76 in (1997) |
| September 29 | 91.0°F (1897) | 21.0°F (1930) | 0.99 in (1965) |
| September 30 | 91.9°F (1922) | 17.1°F (1895) | 1.46 in (1995) |